Stephen, The work done in this bug should stop 12.04 systems getting hosed when updating to 14.04.
The work done in bug #930447 enables Pentium M systems to boot a PAE kernel with the forcepae parameter (this has to be manually enabled by the user). Hopefully this means the 14.04 release image will boot on Pentium M systems. In your case (I assume you have Pentium M) you can install fakepae and then install the enablement stack and stay on 12.04 or (once 14.04 is released) follow the instructions in the wiki to upgrade to 14.04. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1160346 Title: do-release-upgrade from Ubuntu 12.04 on Pentium-M fails, breaks system without any warning (This kernel does not support a non-PAE CPU) Status in Ubuntu Release Upgrader: New Status in “linux” package in Ubuntu: Invalid Status in “ubuntu-release-upgrader” package in Ubuntu: Fix Released Bug description: Attempting to upgrade from Precise with a non-PAE kernel will result in a failed upgrade. do-release-upgrade should check whether the user is using a non-PAE kernel and refuse to run, rather than upgrading to a broken system with no installed kernel. After downloading 1.5GB+ of data and over 1000 new packages, the upgrade will eventually report failure. Looking through the logs there is no kernel installed because of the error "This kernel does not support a non-PAE CPU.": Selecting previously unselected package linux-image-3.5.0-26-generic.^M Unpacking linux-image-3.5.0-26-generic (from .../linux-image-3.5.0-26-generic_3.5.0-26.42_i386.deb) ...^M This kernel does not support a non-PAE CPU.^M dpkg: error processing /var/cache/apt/archives/linux-image-3.5.0-26-generic_3.5.0-26.42_i386.deb (--unpack):^M subprocess new pre-installation script returned error exit status 1^M No apport report written because MaxReports is reached already Related bugs: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/897786 Kernel is dropping non-PAE flavour https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1068862 upgrade from 12.04 to 12.10 on a sans-pae CPU leaves kernel broken To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-release-upgrader/+bug/1160346/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
